Method of making shirt studs



' A. H. METCALF METHOD OF MAKING SHIRT STUDS Original Fi e pr 2 1926 ATTORNEYS Patented Dec. 7, 1926.

w re stares BEST AVAILABLE COPY Pars-Ni ALPHA HORATIO METCALF, OF ATTLEBORO, MASSACHUSETTS, ASSIGNOR TO THE IBAER &1WILDE COMPANY, OF ATTLEBORO, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

Originalapplication filed April 23, 1926, Serial.No. 104,018.- Divided and this application filed July 15, I

i 4 Serial No. 122,520. L v

This invention relates to a new and im proved method of making shirt studs and similar articles and to a new and improved shirt stud or the. like.

Oneof the objects of this invention is to provide a shirtstu-d comprising a one-piece body and a one piecemovable shank providedwith an ornamental head which can be conveniently and cheaply manufactured.

Another object is to provide a device whichshall be substantially dust-proof.

Another object is to provides. simple,

durable, and efiicient spring detent which shall releasably hold the shank in two positions. ()ther objects of this invention will be set forth in the following description-and drawings, which illustrate a preferred embodiment thereof, it being understood that the above general statement of the objects of this invention is intended merely to generally explain the same and not to limit it in any manner.

This application is a division of my application Serial No. 104,018 filed April 23, 1926 for improvement in shirt stud.

Fig. 1 is a front elevation showing the improved stud applied to a shirt.

Fig. 2 is a front elevation of the stud.

Fig. 3 is a side elevation of the stud, shown applied to a shirt.

F 4 is an elevation of the tubing used for making the device.

Fig. 5 is a section on the line 5-5 of Fig. 4:.

Fig. 6 is a side elevation illustrating the first step in the manufacture of the device.

Fig. 7 is a front elevation of the article shown in Fig. 6.

Fig. 8 is a side elevation showing another step in the manufacture of the device.

Fig. 9 is a section on the line 99 of Fig. 8.

Fig. 10 is a sectional View, partially in elevation, showing the completed device, the shank being shown in its intermediate position.

Fig. 11 is a view similar to Fig. 10, the shank being shown in its inner position.

Fig. 12 is a view similar to Fig. 10, the shank being shown in its outer position.

' Fig. 13 is a view similar to Fig. 10, the

spring detent being omitted.

METHOD OF MAKING SHIRT STUDS.

A. piece of tubing made ofgold or any other metal, is provided with an aluminum core 2. The straight section 1 is bent by means of suitable dies or the like to provide it with a leg 4, which is formed ,as shown in Fig. 6, by the bending operation.

A hole 3 is now formed in the tube 1 and a depression inthealuminum core issimultaneously formed as shown in F-ig. '6. The aluminum core is. now removed by' treatment with any suitable acid, which willnot afiect the gold tube. The removal of the core is" facilitated bythe formation of the Opening 3. a

A mandrel M, made of steel or other hard metal, is forced through theopening 3,.so

hat the point of the ina ndrel emerges from the top of the leg 4, as shown in The cross-section of mandrel M is non-circular,

and this mandrel is gpre ferably.fprovided with two opposite, parallel and equal planar faces, and with two convex faces, as shown 1 in Fig. 9. The mandrel M shapes the interior of the leg t so that its cross-section is no longer circular, and it is given a shape corresponding to the shape of the mandrel M.

The top of the leg 4 is now expanded and bent to form a head 9, this operation per se being well-known.

A shank 6, provided with two recesses 7 and 8 and having an ornamental head 10, is now inserted into the leg 4:. The shank 6 has a shape corresponding to the shape of the mandrel M, so that it slides in the leg 4 without turning, and it fits snugly in leg 1, to exclude dust as much as possible.

The shank 6 is placed in the leg 4: in the position shown in Fig. 3 (but without closing the end of tube 1), the ball 12 and the compression spring 11 are placed in posi tion, and the end of the tube 1 is closed.

The compression spring 11 now forces the ball 12 against the shank 6, so that the ball 12 acts as a detent, to releasably hold the shank in either of the two positions shown in Figs. 11 and 12. In these positions, the ball 12 engages either the recess 7 or the recess 8.

W hen the parts of the device are in the osition shown in Fig. 12, the body 1 can he forced through two adjacent stud-openings in a shirt S, so that said body portion 1 assumes the position shown in Figs. 1 and '3. By then pushing on the ornamental shankhead '10, the" shank is forced irito the position shown in Fig. 3, to lock the two parts of tl'ie shirt to each-other. p A z remov ithe d,. 1 .-l2 -=@l moved into the position shown in Fig. 12, when the stud can be readily pulled-flout: t J

It is obvious that the device can be readily nianipulatedfnnd' thatit' is far iilor *cdn venient to use than studs heretofdi -liiiow n' Th Shank cannot be withdrawn fromi-he leg lyfbecause'the-inner end of said-shank is provided with at hook-like extension 14:

indmportantpfaturelofithis invention is thaitsp'ring' detent means are provided which hie" independent of the tubing used. Hence,

there is n oneedto -make this tubing resilient per se'."','

The flange 91s'hould be sowide that it doc:

not pass-through the shirt opening:

:Aizprefe'rred embodiment of this invention 'litsfben described, but it is clear :thatnorn enoiischanges vand omissions'couldbemade 'without-departing'-from its spirit: \Vhex'i- ,ever a shirt-stud is referred to1in"the descriptionor claims, this is ,to be understood -asreferring"to and including all similar arlLInthe art of making? shirt stud, that tepwh'ichcon'sists'in bending into angular BEST AVNLABLE COPY form a metal tube having a' core made of a material different frenF-ihatzofithe tube, formingopening inthe bent thbe" at the outer apex of the said angle, and then remq n he corn-1b ;-.-.et setei nt wh d ow fi 'z 'l a sfifgii fi A In the'art ofmziliing ashir-fiisiiiid, that step which-consists in fofninig" ahdlloiv body portion provided with a hollow leg inclined thereto; and tl'in' formin'ganropeningvinfsaid 'leg and-"- shaping the inner wall thereof so the interior \v'all' thbrfdf conforms Y the contain-"of the saidshziiikgplticing theshank i within the last lg thfi't one end df gm shank roject's-oucsaid'iopeningg plaoing shall within th'e sziidiliollow body pbrtitjn so that it' can engagtthe-ssidrecws; and

then placing within said body portion 'a compression spring 'aiid closing? the open Intestimony vhereoif]: aiflii' my signature.

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